[lostcolony]

This. The OP's particular numbers are -obviously- meaningless without including further context.

If one person had all the money, literally, all the money, and paid any amount on it, be it one cent, or half of the money (either way leaving them with trillions, and everyone else still able to earn nothing), they'd be paying 100% of the taxes. This is an absurd hypothetical, but it demonstrates that the percentage of taxes paid by a particular group tells you nothing by itself.